124 MEMOIRS ON THE COLEOPTERA 



the elytra, the fifth tergite longer than the fourth; middle coxae evidently 

 separated, the blunt apex of the long mesosternal process moderately 

 separated from the notably short and obtusely angulate metasternum. 

 Length 2.4 mm.; width 0.6 mm. California (Santa Rosa and near Napa 

 Junction). 



Differs in many ways from the other described species, among 

 which discordances are the flatter surface, more punctate ab- 

 domen and very much larger eyes. 



Atheta (Adota) scortea n. sp. Only feebly convex, alutaceous, the 

 punctures very fine, not close and invisible because of the strong micro-re- 

 ticulation, this relatively very large, polygonal and distinct on the strongly 

 shining abdomen, where the punctures are fine but asperulate and no- 

 tably sparse throughout; color dark piceous, the elytra but little paler, 

 the legs paler but in great part blackish basally; head large, but little 

 wider than long and only very slightly narrower than the prothorax, 

 convex, the median line very feebly impressed at the centre, the eyes 

 prominent, at slightly more than their own length from the base, the 

 tempora just visibly more prominent, parallel and evenly, moderately 

 arcuate, the carinae wholly wanting; antennae moderately long, notably 

 thick, piceous-brown, gradually and slightly incrassate distally, the 

 second and third joints equal, fourth slightly, the fifth just visibly, 

 longer than wide, the joints thence more or less evidently transverse, 

 the outer joints distinctly so, the tenth a little longer than the ninth, 

 the last gradually and ogivally pointed, not quite so long as the two 

 preceding; prothorax small, barely a fourth wider than long, widest and 

 with the sides strongly rounded apically, thence rather strongly narrowed 

 and with more feebly arcuate sides to the base, the surface feebly concave 

 centrally; elytra but little shorter than wide, subparallel, almost one- 

 half wider and three-fifths longer than the prothorax; abdomen much 

 narrower than the elytra, perfectly parallel, the fourth and fifth tergites 

 equal, the sixth (c?) feebly lobed medially at apex, the lobe rounded, 

 feebly sinuate and with the adjacent surface feebly concave, medially, 

 separated at each side from a small subglobular knob by an anteriorly 

 oblique and feebly subsinuate line which is about as long as the width 

 of the lobe, the sixth ventral rather narrowly parabolic at tip, broad at 

 base; metasternal projection well developed, narrowly angulate. Length 

 2.5 mm.; width 0.63 mm. California (Berkeley, Alameda Co.) 



Remarkably isolated in cephalic and antennal structure and in 

 its small prothorax; the male sexual characters are somewhat as in 

 Stethusa irvingi, the lateral spines replaced by short globular 

 knobs. 



Atheta (Adota) scolopacina n. sp. Feebly convex, alutaceous, the 

 feeble and well spaced punctures scarcely observable because of the very 

 strong micro-reticulation, which, on the shining abdomen, is unusually 

 large and evenly polygonal; color piceous-black, the elytra a little paler, 



